#pragma once
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <string>
#include <cassert>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <fcntl.h>
typedef struct sockaddr sockaddr;
typedef struct sockaddr_in sockaddr_in;

class TcpSocket
{
private:
    int fd_;

public:
    TcpSocket() : fd_(-1) {}
    TcpSocket(int fd) : fd_(fd) {}
    bool Socket()
    {
        fd_ = socket(AF_INET, SOCK_STREAM, 0);
        if (fd_ < 0)
        {
            perror("socket");
            return false;
        }
        printf("open fd = %d\n", fd_);
        return true;
    }
    bool Close() const
    {
        close(fd_);
        printf("close fd = %d\n", fd_);
        return true;
    }
    bool Bind(const std::string &ip, uint16_t port) const
    {
        sockaddr_in addr;
        addr.sin_family = AF_INET;
        addr.sin_addr.s_addr = inet_addr(ip.c_str());
        addr.sin_port = htons(port);
        int ret = bind(fd_, (sockaddr *)&addr, sizeof(addr));
        if (ret < 0)
        {
            perror("bind");
            return false;
        }
        return true;
    }
    bool Listen(int num) const
    {
        int ret = listen(fd_, num);
        if (ret < 0)
        {
            perror("listen");
            return false;
        }
        return true;
    }
    bool Accept(TcpSocket *peer, std::string *ip = NULL, uint16_t *port = NULL) const
    {
        sockaddr_in peer_addr;
        socklen_t len = sizeof(peer_addr);
        int new_sock = accept(fd_, (sockaddr *)&peer_addr, &len);
        if (new_sock < 0)
        {
            perror("accept");
            return false;
        }
        printf("accept fd = %d\n", new_sock);
        peer->fd_ = new_sock;
        if (ip != NULL)
        {
            *ip = inet_ntoa(peer_addr.sin_addr);
        }
        if (port != NULL)
        {
            *port = ntohs(peer_addr.sin_port);
        }
        return true;
    }
    bool Recv(std::string *buf) const
    {
        buf->clear();
        char msg[1024 * 10] = {0};
        ssize_t read_size = recv(fd_, msg, sizeof(msg), 0);
        if (read_size < 0)
        {
            perror("recv");
            return false;
        }
        else if (read_size == 0)
        {
            return false;
        }
        buf->assign(msg, read_size);
        return true;
    }
    bool Send(const std::string &buf) const
    {
        ssize_t write_size = send(fd_, buf.data(), buf.size(), 0);
        if (write_size < 0)
        {
            perror("send");
            return false;
        }
        return true;
    }
    bool Connect(const std::string &ip, uint16_t port) const
    {
        sockaddr_in addr;
        addr.sin_family = AF_INET;
        addr.sin_addr.s_addr = inet_addr(ip.c_str());
        addr.sin_port = htons(port);
        int ret = connect(fd_, (sockaddr *)&addr, sizeof(addr));
        if (ret < 0)
        {
            perror("connect");
            return false;
        }
        return true;
    }
    int GetFd() const
    {
        return fd_;
    }
};